Preparation of Crowded Olefins. Neopentylidenation of Polycycloalkanones by Wittig Dibromomethylenation Followed by Reaction withtert-Butyllithium
- 1 January 1990
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1990 (10) , 885-886
- https://doi.org/10.1055/s-1990-27042
Abstract
A novel preparation of crowded olefins by neopentylidenation of polycycloalkanes is reported. The corresponding polycycloalkanones are first converted into their dibromomethylene derivatives via carbon tetrabromide/triphenylphosphine. Subsequent treatment with tert-butyllithium affords the desired neopentylidenepolycycloalkanes in good yield.Keywords
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